Lighting instrument



FIG. 1 is a perspective view of a lighting instrument showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof.

FIG. 8 is another top view thereof identifying the surface plan of the section view shown in FIG. 9; and,

FIG. 9 is a cross sectional view taken along line 9-9 of FIG. 8. 

CLAIM The ornamental design for a lighting instrument, as shown and described. 